Butylone consists of a methyl substitution at RN, a substitution that is shared with MDEA, ethylone, four-MEC, and selected other stimulants and entactogens. Also, butylone is made up of substitutions at R3 and R4 in the phenyl ring with oxygen groups. These oxygen teams are incorporated right into a methylenedioxy https://citychemiststore.com/product/buy-fentanyl-pills-online/